Nice set up @CaliSteve . Difinetily will took your advise on the 16' size.View attachment 42159 I just purchased a 14' bed trailer for my LJ, I got it tied down and secured just fine. Just completed a 850 trip today. The trailer ran fine, the Jeep never moved a bit. Trailer is rated at 7500 lbs.
Having said all the above I would probably go with the 16 ft. Just to have more tie down options.